Journal :   Asian Journal of Research in Chemistry

Volume No. :   5

Issue No. :  7

Year :  2012

Pages :   831-836

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Selective Determination of Lanthanum(III) by Ion Selective Electrode by Using Calixarene Darivatives as Ionophore



Address:   Arpit Singh1, Aishwarya Singh1, Gyanendra Singh2*
1Department of Chemistry, Mewar University, Chittorgarh, Rajasthan– 312901, India
2Department of Chemistry, M.M.H. College, Ghaziabad (U.P) 201001, India
*Corresponding Author
DOI No:

ABSTRACT:
The work in this paper is related with the synthesis and used of 2,11, 17, 23-Tetra-tert-butyl-22,27-bis-[(5'-hydroxy-3'-thiapentoxy)]-26, 28 dihydroxy calix[4] arene as electroactive material for the selective determination of La(III). The proposed with composition of o-NPOE: PVC: NaTPB: Ionophore (57%: 37%: 5%: 1%) shows the best results. The electrode with o-NPOE as plasticizer worked in the concentration range of 1.0 x 10-9- 1.0 x 10-2 with a detection limit of 1.0 x 10-9 and has Nernstian slope of 21.10 ± 0.3 mV per decade of activity, with a fast response time of 10s within the pH range of 1.5 to 9.5. The proposes electrode work satisfactorily in partial non-aqueous medium up to 30% non-aqueous content of methanol, ethanol and acetone, and was used as an indicator electrode for the titration with standard EDTA solution.
KEYWORDS:
Selective Determination of Lanthanum(III) by Ion Selective Electrode by Using Calixarene Darivatives as Ionophore.
Cite:
Arpit Singh, Aishwarya Singh, Gyanendra Singh. Selective Determination of Lanthanum(III) by Ion Selective Electrode by Using Calixarene Darivatives as Ionophore. Asian J. Research Chem. 5(7): July, 2012; Page 831-836.
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